Shock-absorber.



E. FULLER. SHOCK ABSORBER. APPLICATION FILED MAR. 27.1916. RENEWED MN.H.191?- Patented Feb. 27, 1917.

xmmmo cn c fill/e UNITED STATES PATENT orrro- 'f- EUGENEFULLER, orPROVIDENCE, RHODE ISLAND, ASSIGNOR or ONE-HALF rot A. PECKHAM, orCRANSTON, RHODE ISLAND.

SHOCK-ABSORBER.

Specification of Letters Patent.

Patented Feb. 271917.

Application filed March 27, 1916,. Serial No. 86.883. RenewedJanuary 11,1917. Serial No. 141,914.

To all whom it may concern:

Be it known that I. EtGl-IXE FULLER, a

citizen of the United States. and resident of the city of Providence. inthe county of Providence'and State of Rhode Island, have inventedcertain ne and useful Improvements in Shock-Absorbers, of which thefollowing is a specification. p The object of this invention is toprovide an improvement in spring suspension for vehicles in which; anauxiliary spring is used in conjunction with the ordinary vehiclespringto provide greater flexibility and alsoto prevent excessive reaction orrebound of the main spring.

\Vith these and other objects in view, the invention consists of certainnovel features of construction, as will-be more fully described. andparticularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1- shows my improved shock 'absorbing device as applied to theends of a transversely arranged vehicle spring.

Fig. 2- is a view illustrating the restraining action of theauxiliaryspring upon the nproved shock absorbing device herein shown andillustrated is more particularly adapted for use 011 a vehicle which isprovided with a spring SHSPBllSlOIl of the transverse leaf spring type.

'ith reference to the drawings, 10 designates the shoe or member whichis herein shown as being in the form of a plate but am" desired form ofshoe or member may be employed. The one shown is provided with a pair ofdownwardly extending side ears 11 substantially midway its length, bywhich it is pivoted at 1:2 toflthe shackle, bracket or vehicleelement13. This shoe is also shown as being provided with a pair of cars Itprojecting downwardly from its 'inner end 15 to which the outer end 16of the main spring 17 is connected'by the shucklcslS. 5 1

The outer face of thls shoe or member is formed with a central groove'orrecess and is provided with raised side edges 19 between which theauxiliary spring 20 is mounted. and which serve to prevent lateralmovement of the same. This outer end 21 of this spring is rigidly 'andpermanently attached to the outer end of this shoe or,

means may be employed for limiting the downward rocking motion of theouter end 24: of tl1is member. As shown in Fig. 1 the auxiliary springdevice is adapted to be applied to both ends of a transversely disposedmain spring, but the same may be applied to any form of spring to whichit may be adapted. Another feature of this invention is that the devicemay be applied to such a vehicle by using the parts already in use forsuspending the spring and that without drilling holes in parts of thevehicle. I

The action and operation of the device is as follows: The weight of thevehicle body upon the main spring causes the shoe members 10 supportingeither end thereof to normally tip inward slightly as illustrated inFig. 1 exerting a tension upon the auxiliary springs .20. the outer endsof which are rigidly fixed to the outer ends of the' shoes with theiropposite ends 26 restingupon the back of the main spring at the points27. 'When extra pressure is exerted on themain springs these auxiliarysprings are caused to yield and so assist in vieldinglv support ing thesame. In traveling over rough roads as the main spring reacts and thepressure temporarily is lessened thereon, this shoe.

member 10 is permitted Ito rock backward under tension of the auxiliaryspring until its outer end 2i brings up against the stop 25. atwhichtime the inner end 26 of the auxiliary spring exerts its pressure uponthe main spring and prevents excessive rebound of the same.

My improved shock absorbing device is extremely simple in construction,inexpensive to produce and effective in its operation.

my be madily :m'mfliwi t0 any vahicle provifiQ-i 'w M1 2'. in, macspring sausymnsion and that by using; if m1 b'mckets With-- out the new-nto any of the, pm: 01 the vei Having inu' b0 131110111;

1m 'illiustmtiw'e em- I desireit to be wecificterms are a. g1 mric andfur the purpose of f? the in. tion being J.ul l0" ving CIRHHS.

spring for ve ilicies com.-

' (rt-ed on in vehicl'e e1e= 62s ends, a main spying 'ortad by saidmember On ms pivoting point and an fixed to said member qlmlltle-s farvehicles commsnh :1. main spring having its and sup 0r'md by saidmmnuaar 0n the inner side of its pivoting point, an auxiliary springfixed to sg-Lid member on'the outer side of its pivrating'point; andpositioned to extend across said plvoting pointivith its free end on,the opposite side resting on sah. main spring: means in said member forpreventing a rein-- Live 1mm] motion. of said uuriiiiuryspring merein.and an abutment for limiting? film rocking motion of said member in onedirec In testimony whereof I, affix my signature.

EUGENE FULLER.

ulna-z" pivoted on a vehicle ele-'

